Land use pattern optimization based on eco-service value in the upper Chaobai River Basin

The ecological environmental security and human development are closely related. With the forest eco-service value and the total value of eco-service as main aims, the constraint functions and transformation rules as conditions; the land use situation analysis in 2008 was conducted in number optimization and spatial configuration by linear programming of grey parameters and CLUE-S model in the upper Chaobai River Basin. The results showed that the forestry area and forest eco-service value after the optimal allocation were significantly larger than those in 2008. The fact that increasing rate of forest eco-service value was higher than that of forestry area indicated that the forest eco-service value per unit area was increased and forest structure was improved. With the grasslands or unused lands transforming to forestry or residential and industrial areas, the total value of eco-services was increased mainly in regulation and support services. Driven by economic interests, the development model in the basin brought a great pressure to sustainable development of the capital. Therefore, land degradation and environmental damage should be controlled and improved through resource optimization.